Coran



a. B. concomm TYPE WRITING MACHINE. APPLICATION FILED MAY 24, 191B.

Patentea Aug. 5, 1919.

nil

UURNELIUS B. CORCORAN, OF NEW YOR WRITER COMPANY, OF NEW YORK,

TYPE-WRITING MACHINE.

animal.

To all whom it may concern:

Be it known that I, CORNELIUS B. Con- CORAN, a citizen of the United States, residing in borough of the Bronx, in the county of the Bronx, city and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a speclfication.

My invention relates to devices for guiding cards, envelops, and the like round the cylindrical platens of typewriting machines. The object of the invention is to increase the adaptability and usefulness of such devices, and also to improve the scales which are mounted upon the machine frame at the front of the platen on opposite sides of the printing point.

My invention is in the nature of a com bined card guide and platen scale; the card guide comprising two fingers, one extending up across the printing line at each side of the printing point, and each. pivotally mounted at its lower end for swinging down to horizontal or cumbent position.

According to my improvements, when the card guide is swung down, its horizontal edge may coincide with the printing llne 011 the platen, and letter-space graduations are provided along said edge, to be used like the ordinary wing scales on the Underwood typewriting machine. When the card guldes are swung up to working positions, these graduations are no longer available as 1etterspace indications, but I attach to or form upon each of the card guides an arm extending at right angles thereto, the upper edge of such arm being swung to horizontal position when the card guide is swung to vertical position, and the upper edge of said .arm then coinciding with the printing line, and being also provided with letter-space gradnations, so that whether the card guide is down or up, there is a scale available.

These combined card guides and scales-are shown mounted upon a support which is shiftable up and down with the platen, al-

. though this shiftable feature is not necessary in all cases.

Viewed in one way, it will be noted that a single scale structure is provided for use both when writin upon an ordinary sheet of paper, and when writing upon cards, heavy envelops, etc, the scale including or comprising scale members or Wing scales ill Specification of Letters Patent.

Patented Aug. 5, 1919.

Application filed May 2!, 1918. Serial No. 236,298.

simple in construction and capable of ready adjustment as above explained.

The accompanying drawing illustrates th preferred embodiment of my invention; although it will be appreciated that the same may be embodied in other specific forms.

be typed; a plurality til) Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a fragmentary view in per spective illustrating my improved platen scale, together with so much of a typewriter as is necessary in order to show its connec tion therewith and method of operation. Fig. 2 is a similar fragmentary view showmg my invention in elevation, and as seen from a position at the front of the machine equipped therewith.

Fig. 3 is a similar fragmentary view upon a plane extending at right angles to the axis of the platen.

The reference numeral 4: designates a platen supported in a carriage, the usual means being provided for advancing it in a series of step-by-step movements.

The platen 4 in the Underwood typewritlng machine is shiftable vertically into upper and lower-case positions, movement being communicated to the platen by shift keys 5 acting through bell crank levers 6 pivoted at 7, and carrying a shifting-bar 8; motion being communicated from the bar to the platen to move it vertically, as usual.

The reference numeral 9 designates a vertically shiftable scale supporting member to which motion is communicated from the platen shifting-bar 8 through an arm 10 in the embodiment of my invention illustrated. Inasmuch, however, as thistpresent such mechanism is not illustrated 5 necessary to shift my improved device at the case-shifting operation. 1

The supporting member 9 is illustrated as provided with two arms 11 spaced apart, one

i ht each side of the printing point, and'the upper ends of these arms stand adjacent the platen andthe line of writing, as'shown in Fig. ,1. The reference numerals 12 designate two wing scales pivotally secured t 13,

one at the free upper end of. each of the 15 vertically extending arms of the supporting member 9. It will therefore be appreciated that the scales in question are movably supported, that they may be swung upon their pivotal supports into different positions, and

of writing, and that they may also, if desired, shift up and down with the platen.

It will be appreciated that the number of-individual wing scales is of secondary importance, and that inaccordance with my invention, considered in its bread aspect, a machine may be-equipped with one or a plurality of my improved individual scales.

The devices 12 each comprise a scale arm 14 and a card-guide arm 15 disposed at right angles to each other, and extending from the pivotal points 13 at which the devices are connected with the arms 11 of the supporting member. Both arms are provided with the usual graduations, and are shown in their extreme positions in Figs. 1 and 2. When in the position in which they are illustrated in Fig. 1, the card-guiding arms 15 extend vertically, and act as card uide's or fingers a sti card, envelop, or-other article being written upon in proper contact with the platen 4. In this position the graduations shown on the horizontally extending arms 14 are available for the usual purpose of a scale, and, like the other arms, are supported substantially throughout their length by the broad top of the arms or supports 11 when horizontal. Fig. 2 shows the wing scales in the position which they may occup when writing is being done upon an ordinary sheet of'paper; the arms 14 being then swung into their lowermost position below the line 'of writing, while the arms 15 assume a horizontal position, and'the graduations at their upper ends then forman ordinary platen scale.

Means are preferably provided for locking the wing scales in the two extreme ositions in which they are illustrated in lgs. 1 and 2, respectively, said means bein illustrated as comprising depressions 16 ormed III. thematerial of the supporting members or arms 11, and into which projections caring means, if used,may

that they lie adjacent the platen and the line to assist in holding 1 ried by the arms 14 snap at the ends of the extreme movements of the said wing scales 12 about their pivotal connections 13. Lockbe of any desired form.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim: 7

1. In a platen scale for typewriters, a supporting member, the free end of which lies adjacent the line of writing; and a wing scale located adjacent and pivotally secured to the free end of said supporting member, and having a plurality tions extending at an angle to one another.

2. In a platen scale for typewriters, a supporting member the free end of which lies adjacent the line of writing; and a wing scale located adjacent and pivotally secured to the free end of said supporting member, and having an arm adapted to extend vertically to hold a card, said arm adapted to be swung down to horizontal position at the printing line and detained there, and comprising'a scale adapted to indicate letter-spaces when in horizontal position.

3. In a platen scale {or typewriters, a shiftable supporting member the free end of which lies adjacent and below the line of writing; and a wing scale located adjacent the free end of and pivotally connected withsaid supporting member, and having two arms extending at right angles to one another, one of said arms normally lying horizontally, and comprising a scale adapted to indicate letter-spaces, but adapted to be swung up on the pivot to hold a card, and when so swung up to carry the other arm to the writing line, said other arm comprising a scale adapted to indicate letter-spaces when so swung up.

4. In a platen scale for typewriters, a vertically shiftable supporting member the upper free end of which lies adjacent the line of writing; a wing scale pivotally connected with the free upper end of said supporting member and lying on the face adjacent the platen, and having two arms extending at right angles to one another; and means for locking said scale in two extreme positions, each arm comprising a scale, so that one arm normally serves to indicate letterspaces, and when swun on the pivot serves as a card-holder, and w en so swung brings the other arm to position adjacent the printing line, so that said other arm then indicates letter-spaces.

5. In a platen scale for typewriters, two supporting members spaced apart from one another and the free ends of which members lie'adjacent the line of writing; and a wing scale pivoted upon the inner face of each member, toward the edge nearest 13C of graduated porlll adapted to extend vertically toho d ecard, I

' Witnesses:

other member, an arrn of each shifteble supporting members spacedepert' from one another and movable in unison, end the free ends of which members-lie adjecent the line of writin pivoteol upon each mem r havin an. arm

said arms being swnn adapted to be separately down to horizontal sition at the printing line and detained t ere; and com-* two arms spaced apart I endterminating adjacent'the line of Writand a wing scale .glesto the line of writing.

prising a scale adapted to indicate letter-.

spaces when in horizontal position.

7; In a platenscale for typewriters, a vertically shiftable supportinfg rom one another mg; two wing scales pivotally connected one with the free end of'each of said arms,-

and each of which scales comprises two arms extendm 'from the pivotal connection aforesal other; and means for locking said scales in arms extend parallel with and at right amy CORNELIUS B. GORCORAN.

" EDITH B. LIBnnY,

CATHERINE A, NEWELL.

member having ,and at right angles to one en .two extreme positions in each of which seicl 

